172090896 has 40 divisors (see below), whose sum is σ = 447783840. Its totient is φ = 56948736.

The previous prime is 172090879. The next prime is 172090909. The reversal of 172090896 is 698090271.

It is a super-3 number, since 3×172090896³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6225 + ... + 19568.

It is an arithmetic number, because the mean of its divisors is an integer number (11194596).

Almost surely, 2^172090896 is an apocalyptic number.

172090896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172090896 is an abundant number, since it is smaller than the sum of its proper divisors (275692944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172090896 is a wasteful number, since it uses less digits than its factorization.

172090896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25943 (or 25937 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 172090896 is about 13118.3419684044. The cubic root of 172090896 is about 556.2277244625.

The spelling of 172090896 in words is "one hundred seventy-two million, ninety thousand, eight hundred ninety-six".